#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <ESP8266HTTPClient.h>
#include <strings.h>
// WiFi
const char* ssid = "lin";
const char* password = "heibaizi2000+";
const char* ip="162.14.107.118";


const char* mqtt_server = "broker.mqtt-dashboard.com";//mqtt服务器

WiFiClient espClient;
// PubSubClient client(espClient);
long lastMsg = 0;
char msg[50];
int value = 0;


void setup_wifi() {

  delay(10);
  // We start by connecting to a WiFi network
  // Serial.println();
  // Serial.print("Connecting to ");
  // Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    // Serial.print(".");
  }

  randomSeed(micros());

  // Serial.println("");
  // Serial.println("WiFi connected");
  // Serial.println("IP address: ");
  // Serial.println(WiFi.localIP());
}

/**
 * 消息回调
//  */
// void callback(char* topic, byte* payload, unsigned int length) {
//   Serial.print("Message arrived [");
//   Serial.print(topic);
//   Serial.print("] ");
//   Serial.print("@");
//   for (int i = 0; i < length; i++) {
//     Serial.print((char)payload[i]);
//   }
//   Serial.print("\r\n");
//   payload[length] = '\0';
//   String payload1=(char *)payload;


//   if(payload1.compareTo("led_off")){
//       digitalWrite(BUILTIN_LED, LOW); 
//   }else{
//       digitalWrite(BUILTIN_LED, HIGH);
//   }
//   // Switch on the LED if an 1 was received as first character
//   // if ((char)payload[0] == '1') {
//   //   digitalWrite(BUILTIN_LED, LOW);   // Turn the LED on (Note that LOW is the voltage level
//   //   // but actually the LED is on; this is because
//   //   // it is active low on the ESP-01)
//   // } else {
//   //   digitalWrite(BUILTIN_LED, HIGH);  // Turn the LED off by making the voltage HIGH
//   // }

// }

/**
 * 断开重连
//  */
// void reconnect() {
//   // Loop until we're reconnected
//   while (!client.connected()) {
//     // Serial.print("Attempting MQTT connection...");
//     // Create a random client ID
//     String clientId = "ESP8266Client-";
//     clientId += String(random(0xffff), HEX);
//     // Attempt to connect
//     if (client.connect(clientId.c_str())) {
//       // Serial.println("connected");
//       // Once connected, publish an announcement...
//       client.publish("outTopic", "hello world");
//       // ... and resubscribe
//       client.subscribe("inTopic");
//     } else {
//       // Serial.print("failed, rc=");
//       // Serial.print(client.state());
//       // Serial.println(" try again in 5 seconds");
//       // Wait 5 seconds before retrying
//       delay(5000);
//     }
//   }
// }

//发消息
// void sendMessage(String str){
//     const char *p = str.c_str(); 
//     snprintf (msg, 50, p);
//     Serial.print("Publish message: ");
//     Serial.println(msg);
//     client.publish("outTopic", msg);
// }
//执行一次
void setup() {
  pinMode(BUILTIN_LED, OUTPUT);     // Initialize the BUILTIN_LED pin as an output
  Serial.begin(115200);
  setup_wifi();
  //配置mqtt服务器地址和端口
  // client.setServer(ip, 1883);
  //设置订阅消息回调
  // client.setCallback(callback);
}
//循环执行
void loop() {
  //重连机制
  // if (!client.connected()) {
  //   reconnect();
  // }
  //不断监听信息
  // client.loop();

  //接收到串口消息
  String txt=Serial.readString();
  if(txt.length()>0){
      // Serial.println(txt);
      if(!txt.compareTo("menu")){
        // sendMessage("resetmenu");
        resetMenu();
      }
       if(!txt.compareTo("0.9menu")){
        // sendMessage("0.9menu");
        costMenu();
      }
      if(!txt.compareTo("user")){
        getUsers();
      }
       if(!txt.compareTo("money")){
        getMoneys();
      }
       if(!txt.compareTo("menunum")){
        getMenus();
      }     
  }
}
//重置菜单
void resetMenu(){
  String  URL= "http://"+(String)ip;
  URL=URL+":8086/PC/resetMenu";

  WiFiClient client; 
  //创建 HTTPClient 对象
  HTTPClient httpClient;
 
  //配置请求地址。此处也可以不使用端口号和PATH而单纯的
  httpClient.begin(client,URL); 
 
  //启动连接并发送HTTP请求
  // Serial.println("46");
  int httpCode = httpClient.GET();

 
  //关闭ESP8266与服务器连接
  httpClient.end();
}
//菜品九折
void costMenu(){
  String  URL= "http://"+(String)ip;
  URL=URL+":8086/PC/costMenu";

  WiFiClient client; 
  //创建 HTTPClient 对象
  HTTPClient httpClient;
 
  //配置请求地址。此处也可以不使用端口号和PATH而单纯的
  httpClient.begin(client,URL); 

 
  //启动连接并发送HTTP请求
  // Serial.print("47");
  int httpCode = httpClient.GET();

 
  //关闭ESP8266与服务器连接
  httpClient.end();
}
//得到系统用户数量
void getUsers(){
  String  URL= "http://"+(String)ip;
  URL=URL+":8086/PC/getUsers";
  WiFiClient client; 
  //创建 HTTPClient 对象
  HTTPClient httpClient;
 
  //配置请求地址。此处也可以不使用端口号和PATH而单纯的
  httpClient.begin(client,URL); 

 
  //启动连接并发送HTTP请求
  int httpCode = httpClient.GET();

    if (httpCode == 200) {
    String data = httpClient.getString();
    // Serial.println("Server Response Payload: ");
    // Serial.print("@");
    Serial.println(data);
      // Serial.print("\r\n");
  } else {
    // Serial.println("Server Respose Code：");
    Serial.println("68");
  }
  //关闭ESP8266与服务器连接
  httpClient.end();
}

//得到系统现金数量
void getMoneys(){
  String  URL= "http://"+(String)ip;
  URL=URL+":8086/PC/getMoneys";
  WiFiClient client; 
  //创建 HTTPClient 对象
  HTTPClient httpClient;
 
  //配置请求地址。此处也可以不使用端口号和PATH而单纯的
  httpClient.begin(client,URL); 

 
  //启动连接并发送HTTP请求
  int httpCode = httpClient.GET();

    if (httpCode == 200) {
    String data = httpClient.getString();
    // Serial.println("Server Response Payload: ");
    // Serial.print("@");
    Serial.println(data);
      // Serial.print("\r\n");
  } else {
    // Serial.println("Server Respose Code：");
    Serial.println("68000");
  }
  //关闭ESP8266与服务器连接
  httpClient.end();
}

//得到菜品数量
void getMenus(){
  String  URL= "http://"+(String)ip;
  URL=URL+":8086/PC/getMenus";
  WiFiClient client; 
  //创建 HTTPClient 对象
  HTTPClient httpClient;
 
  //配置请求地址。此处也可以不使用端口号和PATH而单纯的
  httpClient.begin(client,URL); 

  //启动连接并发送HTTP请求
  int httpCode = httpClient.GET();

  if (httpCode == 200) {
    String data = httpClient.getString();
    Serial.println(data);
  } else {
    Serial.println("48");
  }
  //关闭ESP8266与服务器连接
  httpClient.end();
}





